Fire-alarm.



P. RAYMOND.

FIRE ALARM! APPLICATION FILED FEB. 4. 19m.

1 ,235,24;2. Patented J uly 31, 1917.

PIERRE RAYMOND, OF MAISONNEUVE, QUEBEC, CANADA.

FIRE-ALARM.

Specification of Letters Patent.

Patented July 31, 1917.

Application filed February 4, 1916. Serial No. 76,089.

To all whom it may concern:

Be it known that I, PIERRE RAYMOND, a subject of the King of Great Britain, residing at Maisonneuve, Province of Quebec, Canada, have invented certain new and useful Improvements in Fire-Alarms; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to fire alarms.

The object of my invention is to provide a compact cooperating structure, the actuating parts of which are confined in a single casing to open the doors of a fire station, to crank the motors of fire apparatus, to light the lamps at each intersecting street railway crossing in the district in which an alarm is turned in, to sound an audible signal in front of the station from which response to the alarm is made and which will remain continuous until the apparatus is out, and to flash a light in the station at each stroke of the alarm bell which is rung in turning in the alarm. It is intended that all these acts should be accomplished practically simultaneously and the mechanism thereof controlled by a single, simple piece of apparatus.

My invention consists of the construction, combination and arrangement of parts as herein illustrated, described and claimed.

In the accompanying drawings, forming part of this application, I have illustrated a form of embodiment of my invention, in which drawings similar reference characters designate corresponding parts and in which:

Figure 1 is an elevation with the front wall of the casing removed; and,

Fig. 2 is a right hand end elevation with the end and front wall of the casing removed.

Referring to the drawings 1 designates a rectangular casing having a removable top, preferably of metallic construction and arranged to be secured at any suitable place in a fire station.

Carried by one end of the casing 1 and extending therein are terminals or binding posts 2 which receive the wires from the ordinary alarm boxes located on the street. These wires also pass through the adjacent terminal 26 and a wire 28 connects the terminal 26 and the terminal 27 for the purposes hereinafter described.

Included in the circuit of the terminals 2, 26 and 27 is a solenoid 3, which when energized is arranged to attract lever l which is normally maintained in the full line position of Fig. 1 by means of a spring 5. The lever 4 is provided with an angular portion 6 arranged to engage the wall of a recess 7 formed in one side of a release bar 9 which is vertically slidable through suitable openings in the casing 1.

A projecting shoulder 10 is secured or formed on the bar 9 and is arranged to contact with a lever 11 pivotally supported in side of the casing 1 and after rocking the same out of engagement with the recess 12 of an unlocking bar 13 to be arrested by the lower wall of the casing 1. The lever 11 is normally maintained in the full line position shown in Fig. 1 by means of a spring 11*. Carried by the lower end of the unlocking bar 13 is. a weight 14 designed to give the bar 13 sufficient momentum to unlock the station doors or perform any other similar function.

Carried by the release bar 9 and insulated therefrom is a projecting contact arm 15 on which is disposed a guide yoke 16 working over the unlocking bar 13.

Carried on the under side of the contact arm 15 are contact plates 17, 18 and 19 arranged to bridge respectively the contact points 20, 21 and 22, which receive the separate wires of circuits 23, 241 and 25. The

contact points 20, 21 and 22 are carried by' a suitable support on the horiozntal partition 32 disposed across the bars which also forms a pivotal support for the lever 41, and other working parts.

The circuit 23 includes any suitable ignition device for starting an automobile, the circuit 24 includes any suitable source of electric light and lamps disposed at the street railway crossings in the district in which the apparatus is placed and the circuit 25 includes any suitable audible signal.

Therefore the dropping of the release bar 9 will automatically start the motor apparatus, light the lamps in the circuit included in 21, give a signal in front of the station which is audible for a distance to warn trafiic that apparatus is about to leave the station, and the bar 13 under the influence of the weight l-l will operate suitable release mechanism to open the station doors, so that all of these operations are performed practically synchronously.

Included in the circuit represented by the terminals 2 and 27 is a solenoid 29 which when energized is arranged to operate a lever 30 against the tension of its spring 31 to its dotted line position where it contacts with a terminal 32 closing the circuit represented by the wires 33 which are connected to a suitable bell ringing circuit which also includes a light. The lever 30 is pivoted on the horizontal partition 34 and is provided with a suitable contact point 35 on its end opposite the terminal so that an electrical connection is readily made.

An alarm being turned in through the medium of well known installations which indicate the number of the alarm box, the solenoid 29 will be periodically energized, causing a rocking movement of the lever 30 and the intermittent making and breaking of the circuit represented by the wires 33. The gong in said circuit will be rung to inclicate the number of the box from which the alarm was turned in and at each stroke of the gong a lamp will be switched on so that the number of the boX may be counted as well as heard, permitting an accurate verification ol the boX from which the alarm was turned in.

Having thus fully described my invention what I claim as new and Letters Patent is:

l. A fire alarm apparatus comprising a casing, a release bar disposed through the casing, electrically operable means for releasing the release bar when an alarm is communicated to the casing, a door releasing gravity operable bar disposed through the casing adjacent the release bar, means for locking the door releasing bar operable by movement of the release bar, a plurality of open circuits terminating in the casing, and means carried by the release bar for closing the circuits.

2. In a fire alarm apparatus comprising the combination of a casing, a rockable spring pressed lever in the casing, electrically operated means for rocking the lever when an alarm is communicated to the boX, a release bar disposed adjacent the lever and provided with a part arranged to contact with the lever and provided with a project ing part, a spring pressed lever disposed in the path of movement of the projecting part, a weighted slidable door opening rod disposed through the casing, and provided with a recess arranged to receive one end of the second lever when in one position, a plural- 7 desire to secure by ity of open circuits terminating in the easing, and means for closing the circuits carried by the release bar.

3. A firm alarm apparatus comprising the combination of a casing, a releasing member disposed through the casing, electrically operable means for releasing the releasing member, a plurality of open circuits terminating in contact points in the casing, a bridge plate carried by the releasing member and arranged to contact with all of the contact points, an unlocking bar disposed within said casing and means whereby when the releasing member is operated the unlocking bar will be actuated and the contact points simultaneously closed.

4. A fire alarm apparatus comprising the combination of a casing, a releasing member disposed through the casing, electrically operable means for releasing the releasing member a weighted, gravity operated unlocking bar arranged adjacent to and to be operated by movement of and when the releasing member is released, a plurality of open circuits terminating in contact points in the casing, and a bridge plate carried by the releasing member and arranged to contact with all of the contact points simultaneously.

5. A fire alarm apparatus comprising the combination of a casing, a plurality of open circuits terminating in the casing, gravity operated means for closing the circuits, electrically operated means for permitting operation of the circuit closing means, a circuit leading into the casing from an alarm system, an open gong and lamp circuit leading to the casing, and electrically operable means for closing the latter circuit.

6. A fire alarm apparatus comprising the combination of a casing, a plurality of open circuits terminating in the casing, gravity operated means for closing the circuits, elec trically operated means for permitting operation of the circuit closing means, a circuit leading into the casing from an alarm system, an open gong and lamp circuit leading to the casing, and electrically operable means for closing the latter circuit comprising a solenoid, a spring pressed lever having one end adjacent the solenoid, and a contact on the opposite end arranged to bridge the open end of the latter circuit.

7. A fire alarm apparatus comprising a casing, a partition arranged within said casing, a spring actuated lever mounted upon said partition, a solenoid arranged within said casing and adapted to actuate said lever against the tension of its spring, a vertical slidable releasing bar arranged within said casing and adapted to be held in its raised position by means of said lever, a plurality of open circuits arranged upon said partitlon, a contact arm adapted to close said cir 'cuits, an unlocking bar arranged within said casing, a spring actuated lever mounted upon said casing for retaining said unlocking bar in a raised position, said releasing bar adapted to actuate the last said lever for simultaneously releasing said unlocking bar when the circuits are closed, a second solenoid arranged within the casing, and a swinging lever adapted to be actuated by said second solenoid substantially as and 10 for the purpose set forth.

In witness whereof I have hereunto set my hand.

PIERRE RAYMOND.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

